# NCE40P05Y

**Wuxi NCE Power Semiconductor** · MOSFETs · SOT-23-3L

NCE40P05Y from Wuxi NCE Power Semiconductor, in a SOT-23-3L. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | G | input | Gate; gate-source voltage limited to ±20 V, with threshold VGS(th) of -1.0 V to -3.0 V at ID=-250μA. |
| 2 | S | passive | Source of the P-channel MOSFET; body diode forward current IS is limited to -3.3 A. |
| 3 | D | passive | Drain; drain-source voltage rated -40 V, continuous drain current -5.3 A, pulsed -18 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Wuxi NCE Power Semiconductor |
| Package | SOT-23-3L |
| Category | Transistors/Thyristors |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain-Source Voltage | VDS |  |  | -40 | V |  | 1 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Drain Current-Continuous | ID |  |  | -5.3 | A |  | 1 |
| Drain Current-Continuous (TC=100℃) | ID(100℃) |  |  | -3.7 | A | TC=100℃ | 1 |
| Pulsed Drain Current | IDM |  |  | -18 | A | Note 1 | 1 |
| Maximum Power Dissipation | PD |  |  | 2 | W |  | 1 |
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance, Junction-to-Ambient | RθJA |  |  | 62.5 | ℃/W | Note 2 | 1 |
| Drain-Source Breakdown Voltage | BVDSS | -40 |  |  | V | VGS=0V ID=-250μA | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS=-40V, VGS=0V | 2 |
| Gate-Body Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±20V, VDS=0V | 2 |
| Gate Threshold Voltage | VGS(th) | -1 | -1.9 | -3 | V | VDS=VGS, ID=-250μA | 2 |
| Drain-Source On-State Resistance | RDS(ON) |  | 73 | 85 | mΩ | VGS=-10V, ID=-5A | 2 |
| Diode Forward Voltage | VSD |  |  | 1.2 | V | VGS=0V, IS=-3.3A | 2 |
| Diode Forward Current | IS |  |  | -3.3 | A | Note 2 | 2 |

## CAD (KiCad official)

- Symbol: `NCE40P05Y`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `nce40p05y-etched.step` / `nce40p05y-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `nce40p05y.step` / `nce40p05y.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Wuxi NCE Power Semiconductor datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756291130193522688) (7 pp, sha256 `6cc604ba074d51b8`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/nce40p05y-datasheet.pdf)